ML20154F965
| ML20154F965 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 05/17/1988 |
| From: | Andognini G SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-3.D.3.4, TASK-TM GCA-88-313, NUDOCS 8805240152 | |
| Download: ML20154F965 (2) | |
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'$SMUD SACRAMENTO MUNICIPAL UTIUTY DISTRICT O 62o1 S Street, P.O. Box 15830, Sacramento CA 95852 1830,1916) 452 3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA NAY 1 1 MB8 GCA 88-313 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Docket No. Fa-312 Rancho Sect iuclear Generating Station License No. DPR-54 CR/TSC HABITABILITY, NUREG 0737 ITEM III.D.3.4
Reference:
G. C. Andognini to Frank J. Miraglia, Jr. letter dated February 25, 1988, CR/TSC HABITABILITY, NUREG 0737 ITEM III.D.3.4
Dear Sirs:
In the referenceo letter the District committed to perform a wind tunnel study to verify tile acce,9tabilf tv of the current outside air intake locations for the Control Room /TSC HVAC s,'st%s.
This study was to verify correctness of the X/Q value in use for the CR/tsC dose evaluation. Any modifications required, based on the results of this study, were to be implemented prior to return to power from our nex7. refueling outage.
Members of your staff have recently indicated that wind tunnel testing may not be the preferred method to verify acceptablility.
They also indicated that a new method was expected to be identified in the near future which would address the development of Control Room X/Qs.
Based on the concern with the results achieved through wind tunnel testing and the likelihood of other analysis methods being available in the near future, the District is not currently pursuing wind tunnel testing.
Further action is on hold pending transmittal of infonnation related to an improved analysis method.
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,PDR ADOCK 05000312 l
RANCHO SECO NUCLtAH Ud itNU b RATION O 1444o Twin Cities Road, Herald, CA 95638 9799;(209) 333 2935
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$ 1.7.' 19R Document Control Desk ' GCA 88-313 Upon receipt of the new methodology, the District will evaluate the new information and perform reanalysis and/or plant modifications as needed. Our intentiens are to complete any required modifications prior to returning to power from the next refueling outage, unless receipt of the new methodology is delayed to the point where that schedule is impacted. A firm schedule will be-established upon evaluation of your new methodology.
Members of your staff with questions requiring additional information or clarification may contact Mr. David Swank at (209) 333-2935, extension 4920.
I Sincerely,
, Carl Andogni i Chief Executive Officer, Nuclear cc:
G. Kalman, NRC, Rockville A. D'Angelo, NRC, Rancho Seco J. B. Martin, NRC, Walnut Creek 1
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